Sling pack



FIG. 1 is a front perspective view showing my new design for a slingpack;

FIG. 2 is a right side elevational view;

FIG. 3 is a front elevational view;

FIG. 4 is a top plan view;

FIG. 5 is a rear elevational view;

FIG. 6 is a bottom plan view; and,

FIG. 7 is a left side elevational view.

CLAIM The ornamental design for a sling pack, as shown and described.